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Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote
user="martinshorn"] Indeed you sound a little racist, but i think we all have our prejudice. [/quote]
I do not think that it is racist
in any way or form. Racism is a prejudice against a race in my case it is prejudice
and historic...
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[quote user="haralanov"] Your response is a very good illustration of how you redirect attention away from the actual discussing subject and point it to a completely different direction that has absolutely no relation to that subject. You asked me wh...
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[quote user="Paul S"] I am glad to hear that I am not the only one who is overwhelmed by compression drivers. I tried the A7s way back when they were current and everyone's favorite, and I tried various modifications with like-minded friends; b...
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[quote user="Lx_"] Another example of cannot-measure-it-but-can-hear-it? [/quote]Oh, yes, there is plenty of it in the audio electricity world. It is not that “cannot-measure”, everything might be measured the problem is that we have no idea wha...
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Hi
[quote user="Romy the Cat"]
Dose it means that the “ultimate horn profile” would be a profile that would be a DIRECT AND FLAWLESS CONTINUATION of the GIVEN SPECIFIC DRIVER?
Rgs,The Cat[/quote]
Actually you can make a new driver throat to m...
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A few years ago playing with my favorite Vitavox S2 driver I was asking myself how it might sound if instead of the Alnico magnet the electromagnets would be used. As many other driver of the period the Vitavox did not utilized the only one magnet ty...
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[quote user="morespeakers"]If there is any info in this or another post about why the S2 is so much better than the Altec 288c please direct me. If not what makes the S2 drivers so different than a 288C? (I am talking about 288'cs that the ...
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[quote user="Romy the Cat"]I have no idea why you are surprised that I submitted my test. Anyhow, I do not know what to look at and how to interpret what I see when I analyze the result of this test. The feedback that Paul R forwarded to me did inter...
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Thanks, Romy, for your generous reply.
I won't try to address everything about everything, but let me bore
you with a mini-history of what is going on with my playback so you
will understand where I'm coming from and where I'm trying to ...
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[quote user="Sean19"]Both versions of
802's have GPA diaphragms both are used on the same horn in a model 19 clone.
Over longer periods of time the older versions are easier on my ears. [/quote]You deal with random result. Pretend that you
have yo...
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Regarding L1 and L2 outputs and bi-amping:
Romy wrote:"...The unfortunate part is that if you still intend to run a dedicated cable to your let say LF section and if you use Lamm preamp then you can’t... his preamps (L1 and L2, I do not know h...
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I do not think my topology is relevant, (it took me 3 months to get my studio horns to sound right 20 years ago so I expect this again, it is a mix of mjlouspeaker transmission lines and this midrange m4 trial. And it is actually 2 systems I am w...
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[quote user="guy sergeant"]Not yet. I'll give him a call & put details of the reply here.[/quote]Guy, when you will be taking with Mike then here are some taking points for you if you wish:
1) What type of magnet Mike is planning to use in his new...
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Romy wrote :
"...what driver do you use for injection?..."
I don't know! I pulled the entire device (driver+enclosure) from the garbage in front of an old house... the enclosure is made so that I will have to break it open to see the rear of th...
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[quote user="Johan Dreyer"] I had a SG370 mid apart only yesterday.I should have taken a photograph. I have also seen the inside of the tweeter. They are very similar, so I have no reason to suppose the low mid SG 505 will be much different. I'll try...
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Romy,In the diyaudio thread on EnABL I cover the Hemp acoustics FR 4.5 C and the Lowther A45. Both drivers in your size range.Since EnABL does not measurably alter any compression wave characterisitcs of the piaton mode tests, except for phase shift ...
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[quote user="jessie.dazzle"]Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.
Interesting, the phase plug-lik...
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Continue in my journey to found an optimum solution for Multiplex stereo decoder I made today some experiments with Ampex multiplex decoder with intention to see if it would be able to offers any advantages over Sansui’s HA11223W-based PLL multiplex....
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Thank you Ulf and Jessie,
I can't wait to get this started. Jessie I am going to send this plaster spec to my supplier and see if I can find something close..
In the past I would use plaster for creating a wax form.. then put the wax form into a s...
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[quote user="noviygera"]I got this new midbass horn to replace the Edgar 80Hz straight horn. It is made by Funktion-One and they claim it plays down to 90hz. I could not get it to play below 120Hz and I am trying to figure out why.
15" driver....
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Hi Romy,
FYI: The previous photo of some unknown persons "pile o' horns" appears to be:
Upper midrange: 1" TAD TD-2002 mounted to 650Hz Edgarhorn
Supertweeter: Fostex T90A or T925A.
Lower midrange: ...
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[quote user="Romy the Cat"]I thought that the folks who are interesting where I am going with my Macondo should know that am still working with Vitavox S2[/quote]OK, I think now I’ve learned whatever I need to learn about this driver. In order to und...
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[quote user="cv"] Well, the Cogent (Steve Schell and Rich Drysdale) boys are building just such a beast: field coil magnet, (possible) permendur polepieces for >2T, Fs 70Hz, throat - dunno, but at least 3" dia, reduced compression ratio relative t...
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Here is an interesting setup. It is nowhere in Moscow Russia. I did not hear it but it does not mean that we can’t analyze what the authored was trying to accomplish.
It is 3-way installation. Bass looks like dual G...
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[quote user="zanon"]As a horn player, I sometimes introduce honk because it introduces a stress tone that feels louder, without actually having to play louder. THis gives me more dynamic flexibility, and I can communicate more extremes.
I have...
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[quote
user="xandcg"]I was thinking ESD drivers may have a true advantage
over ALE/GOTO/Others (apparently they actually know how their drivers work) if
that allow to someone design the horn exactly the way he/she want, and later
order the driver...
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[quote user="Romy the Cat"] Sean19 wrote:Both versions of
802's have GPA diaphragms both are used on the same horn in a model 19 clone.
Over longer periods of time the older versions are easier on my ears. You deal with random result. Pretend that ...
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The subject of electromagnetic, or as they called field-coil drivers, popped up at my site numerous times. (Look as it list of related threats). The advances or shortcomings of electromagnetic drivers are arguable, I have my vision, but it is not the...
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This is terrific information Ulf. Thank you very much. I won't start builing until early december but will post the project here.
Plan to form my horns from microcrystaline wax first, so i can experiment with throat termination. I have a background...
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